arm64: dts: qcom: msm8992: Add BLSP2_UART2 and I2C nodes

Add support for I2C to enable support for peripherals
such as touchscreens or sensors. Also add BLSP_UART2 interface.

Please note that the naming scheme follows downstream and as
abominable as it is, that's what we get.

Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200625182118.131476-9-konradybcio@gmail.com


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>